Bus front portion



FIG. 1 is a front view of our new design relating to a bus front portion;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a perspective right side view thereof;

FIG. 5 is a perspective left side view thereof; and,

FIG. 6 is a top plan view in perspective thereof. 

The ornamental design for a bus front portion, substantially as shown. 